Drilling a bypass hole in the thermostate?
Drilling a bypass hole in the thermostate? Tried to run a search on this but did not find the info I was looking for. Has anyone ever drilled out a larger coolent by pass hole in the thermostate? How well does it work? Please give me your thoughts, coment's, idea's, and expereince on this please. <img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> Thanx in advance. <img border="0" alt="[USA]" title="" src="graemlins/patriot.gif" />
Launching!
Joined: Mar 2003
Posts: 293
Likes: 0
From: TX.
Re: Drilling a bypass hole in the thermostate? hey man,i have and it worked great.
i also cut the spring enough to where it was just snug, and on drilling the holes,i drilled 5 holes in a start shape using a 1/8"in drill bit.
i drilled the holes in that bowled ridge area
around the edge of the valve body.
hope that helps man <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> <img border="0" alt="[USA]" title="" src="graemlins/patriot.gif" />
i also cut the spring enough to where it was just snug, and on drilling the holes,i drilled 5 holes in a start shape using a 1/8"in drill bit.
i drilled the holes in that bowled ridge area
around the edge of the valve body.
hope that helps man <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> <img border="0" alt="[USA]" title="" src="graemlins/patriot.gif" />
Re: Drilling a bypass hole in the thermostate? Hey cueball, How much longer does it take to warm up the engine? also I want to keep my coolent temps around 170*-180* and keep my timing around 28*-30* WOT without any KR. <img border="0" alt="[shoot]" title="" src="graemlins/gr_guns.gif" /> (KR) and (mustangs).
TECH Resident
Joined: Mar 2003
Posts: 770
Likes: 0
From: Troy Al
Re: Drilling a bypass hole in the thermostate? My 160 thermastate was only 40.00
I am not sure it would be worth all the extra work.
just my.02 <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
I am not sure it would be worth all the extra work.
just my.02 <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Re: Drilling a bypass hole in the thermostate? I believe this is only necessary when you have
a messed up cooling system. Like on one of my
project cars, I had the 'stat stagnant and it
wouldn't open on startup for a long time (like
point of boilover). Drilling the thermostat valve plate fixed this. A bypass hole ensures that
the 'stat won't be totally isolated from the
mainstream coolant flow. A little one suffices
(1/8") for that.
I guess if I had mine apart I'd do it just for
luck. Doesn't hurt anything as far as I've seen.
a messed up cooling system. Like on one of my
project cars, I had the 'stat stagnant and it
wouldn't open on startup for a long time (like
point of boilover). Drilling the thermostat valve plate fixed this. A bypass hole ensures that
the 'stat won't be totally isolated from the
mainstream coolant flow. A little one suffices
(1/8") for that.
I guess if I had mine apart I'd do it just for
luck. Doesn't hurt anything as far as I've seen.
